31334564 has 6 divisors (see below), whose sum is σ = 54835494. Its totient is φ = 15667280.

The previous prime is 31334509. The next prime is 31334581. The reversal of 31334564 is 46543313.

31334564 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in only one way, i.e., 30030400 + 1304164 = 5480^2 + 1142^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3916817 + ... + 3916824.

It is an arithmetic number, because the mean of its divisors is an integer number (9139249).

Almost surely, 2^31334564 is an apocalyptic number.

It is an amenable number.

31334564 is a deficient number, since it is larger than the sum of its proper divisors (23500930).

31334564 is a wasteful number, since it uses less digits than its factorization.

31334564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833645 (or 7833643 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 31334564 is about 5597.7284678698. The cubic root of 31334564 is about 315.2641238164.

Adding to 31334564 its reverse (46543313), we get a palindrome (77877877).

The spelling of 31334564 in words is "thirty-one million, three hundred thirty-four thousand, five hundred sixty-four".